can run playwright in multi-threads

params.py

@@ -1,4 +1,6 @@
 import configparser
+import random
+import string
 
 from playwright.sync_api import sync_playwright
 
@@ -11,7 +13,13 @@ oracle_log_sender = LogSender()
 # proxy
 PROXY_SERVER = "http://gw.ntnt.io:5959"
 PROXY_PASSWORD = "94sY7zwBG13i"
-SINGLE_PLAYWRIGHT_INSTANCE = sync_playwright().start()
+
+def get_random_id_number_for_proxy() -> str:
+    S = 8  # number of characters in the string.
+    ran = ''.join(random.choices(string.digits, k=S))
+    id_number = str(ran)
+    print("The randomly generated string is : " + str(ran))  # print the random data
+    return id_number
 
 DEVICES = ['iPad (gen 6)', 'iPad (gen 6) landscape', 'iPad (gen 7)', 'iPad (gen 7) landscape', 'iPad Mini',
            'iPad Mini landscape', 'iPad Pro 11', 'iPad Pro 11 landscape', 'iPhone 6', 'iPhone 6 landscape',